I know it seems pretty much established that it'll just be a Sumerian band, but I have a feeling Dirge Within might get added(theyve been removed from all ads for the Shockwave tour and no longer have those dates on their site) they did do dates of Mayhem in the past before getting signed

EDIT: nevermind, Upon A Burning Body has been confirmed to rotate between Jager and Sumerian, but that just raises questions